Why is the `global` keyword needed inside a function?

To create a new local variable.

To read the value of a global variable.

What happens when you call `def greet(name='friend'):` without any arguments?

The function receives None as the argument.

A TypeError is raised because an argument is required.

The function uses the default value 'friend'.

The function receives an empty string.

Python InstitutePCEP - Certified Entry-Level Python Programmer

Domain 4Objective 2

PCEP-30-02 4.2 Organize Interaction Between the Function and Its Environment PCEP-30 Practice Questions (Page 6)

Part of the Functions and Exceptions domain, which accounts for 28% of the PCEP-30 exam. Python Institute does not publish an official question count, but from its 45-minute exam (~20–30 total, ~6–8 in this domain), expect 2–2 from this objective — we provide 31 practice questions to prepare you well beyond it. (estimate)

31questions here

7free pages

8concepts

28%of the exam

Questions 26–30

26foundation · easy
Why is the `global` keyword needed inside a function?
Select an answer first
27application · medium
Consider the code: ```python x = 10 def f(): x = 5 print(x) f() print(x) ``` What is the output?
Select an answer first
28application · easy
Given `def divide(a, b): return a / b`, which call returns 2.0?
Select an answer first
29foundation · easy
What happens when you call `def greet(name='friend'):` without any arguments?
Select an answer first
30application · medium
What is the output of the following code? ```python value = 100 def show(): value = 200 print(value) show() print(value) ```
Select an answer first

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PCEP-30-02 4.2 Organize Interaction Between the Function and Its Environment PCEP-30 Practice Questions (Page 6)

Questions 26–30

Why is the `global` keyword needed inside a function?

Consider the code: ```python x = 10 def f(): x = 5 print(x) f() print(x) ``` What is the output?

Given `def divide(a, b): return a / b`, which call returns 2.0?

What happens when you call `def greet(name='friend'):` without any arguments?

What is the output of the following code? ```python value = 100 def show(): value = 200 print(value) show() print(value) ```

Keep studying — Functions and Exceptions